Neurodevelopmental Disorder with Hypotonia, Impaired Speech, and Behavioral Abnormalities, is also known as nedhisb. An important gene associated with Neurodevelopmental Disorder with Hypotonia, Impaired Speech, and Behavioral Abnormalities is GNAI1 (G Protein Subunit Alpha I1). Affiliated tissues include brain, and related phenotypes are intellectual disability and global developmental delay